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Preparation method of composite board assembly capable of ensuring smooth biting of roll and rolling method

A composite plate and rolling technology, which is applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve the problem that the roll-rolled composite plate cannot be bitten smoothly, so as to improve equipment safety and production efficiency, reduce Difficulty in production and the effect of reducing difficulty in biting

Pending Publication Date: 2022-05-17
SD STEEL RIZHAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem in the prior art that rolling and rolling composite plate blanks cannot be bitten smoothly, the present invention provides a preparation method and a rolling method of composite plate blanks that ensure smooth rolling and rolling, and reduces the rolling production of thin-gauge single-sided stainless steel composite plates. Difficulty, improve equipment safety and production efficiency

Method used

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  • Preparation method of composite board assembly capable of ensuring smooth biting of roll and rolling method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Raw material cutting

[0027] Composite material 3 is 304 stainless steel: length 10700mm, width 1850mm, thickness 15mm, smelting composition of composite material 3 stainless steel

[0028] See Table 1;

[0029] Base material 1 is Q235B steel: length 11000mm, width 1850mm, thickness 230mm.

[0030] Table 1304 stainless steel melting composition (%)

[0031] C Si mn P S als Ni Cr 0.08 0.30 0.40 0.014 0.003 0.027 7.6 17.7

[0032] (2) Composite plate blank welding composite

[0033] Such as figure 1 , milling is carried out on one end plane of the base material 1 and the composite material 3 having the same length, a sunken plane 2 with a milling depth of 15 mm and a length of 10700 mm, and the other end forms the base material end 4; the processing surface of the composite material 3 is milled flat, clean The processed surfaces of the composite material 3 and the base material 1 are free from oil, dust, debris, and moisture, s...

Embodiment 2

[0047] (1) Raw material cutting

[0048] Composite material 3 is 2205 duplex stainless steel: length 10500mm, width 1800mm, thickness 18mm, the melting composition of composite material 3 stainless steel is shown in Table 2;

[0049] Base material 1 is Q235B steel: length 10900mm, width 1800mm, thickness 230mm.

[0050] Table 2 Melting composition of duplex stainless steel (%)

[0051] C Si mn P S als Ni Cr Mo N 0.03 1.00 2.00 0.008 0.003 0.027 5.8 22.4 3.3 0.14

[0052] (2) Composite plate blank welding composite

[0053] Carry out deep milling on one end plane of the base material 1 and composite material 3 having the same length, milling a sunken plane 2 with a depth of 18 mm and a length of 10500 mm, and form the end of the base material 4 at the other end; perform flat milling on the processing surface of the composite material 3, Clean the processed surface of composite material 3 and base material 1 to make it free from oil, du...

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Abstract

The invention relates to the technical field of hot rolling of composite plates, in particular to a preparation method of a composite plate assembly capable of ensuring smooth biting of a rolled plate and a rolling method. Comprising the following steps: S1, selecting a base material and a composite material; s2, processing a processing surface at one end of the base material into a sunken plane, and forming a base material end head at the other end; s3, the sunken plane at one end of the base material and the clean surface of the composite material are attached and assembled, after the composite material and the base material are pressed and short edges of the composite material and the base material are welded, the composite material and the base material are fed into a vacuum chamber to be vacuumized, electron beam welding is conducted on the rest edges of the composite material and the base material under the high vacuum degree, and a composite plate assembly is obtained; and S4, the end of the heated composite board assembly base material is rolled in front of the composite board assembly base material. The rolling production difficulty of the thin-specification single-face stainless steel composite plate is reduced, and the equipment safety and the production efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of hot rolling of composite plates, in particular to a preparation method and rolling method of a composite plate assembly which ensure smooth biting of rolling and rolling. Background technique [0002] The production of single-sided stainless steel clad plates below 6mm is generally rolled by hot rolling mills, and the composite plate blanks welded by single-sided stainless steel clad materials and base materials are used as raw materials. Different materials, different coefficients of friction, and different deformation resistances lead to unsmooth biting of the board head every time, and there are risks of equipment failure and safety accidents. Contents of the invention [0003] Aiming at the problem in the prior art that rolling and rolling composite plate blanks cannot be bitten smoothly, the present invention provides a preparation method and a rolling method of composite plate blanks that ensure s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/34B21B15/00B23P15/00
CPCB21B1/34B21B15/0007B23P15/00B21B2015/0064B21B2261/04B21B2261/12B21B2261/20Y02P70/10
Inventor 刘熙章周兰聚成小龙孙京波郝燕森史成斌于爽张英杰
Owner SD STEEL RIZHAO CO LTD
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